.contain{
    position: absolute;
    background-color: #ff3127;
    min-height: 100%;
    top:0px;
    left:0px;
}
.contain .ewmbg{
    width:100%;
    display: block;
}
.contain .ewm{
    position: absolute;
    bottom: 3rem;
    left: 0px;
    right: 0px;
    margin: auto;
    width: 50%;
}